As per the latest digital foundry video at the 17:40 mark, the Xbox Series S will play only the OG/Xbox One S version via backwards compatability due to the Series S RAM constraints.
It will not play the Xbox One X version via backward compatability.
Xbox One X - 9gb ram usable for games
Series S - 8gb (DF rumoured to have heard it has 7.5GB) usable for games
Thought this was pretty big news that we haven't heard before
It will not play the Xbox One X version via backward compatability.
Xbox One X - 9gb ram usable for games
Series S - 8gb (DF rumoured to have heard it has 7.5GB) usable for games
Thought this was pretty big news that we haven't heard before